Choosing the Proper Scan

Choose a scan or task based on your hard drive’s scenario or characteristics. After a completed or suspended scan you can Browse Previous or Suspended Scans at a later time.

Quick Scan

The internal hard drive’s operating system fails to boot. An external volume fails to mount. Quick scan results are shown in the found files folder.

If the quick scan takes more than an hour try the deep scan.

Deep Scan

No volumes are detected on the hard drive. A hard drive was reformatted. The Quick Scan did not provide expected results. The Quick Scan is taking more than 2 hours. A fresh installation of an operating system overwrote an existing hard drive. Deep scan results will be displayed in both folders.

The Deep Scan usually takes up to three minutes per gigabyte. With large capacity hard drives, it may require several hours to complete a scan. Physical issues such as bad blocks on the hard drive may slow down the scan process even longer, but the scan will immediately speed up once it has overcome the bad blocks. Allow adequate time for the scan to finish.

Deleted Files Scan

Files were deleted through the operating system. Files were deleted by another program. Deleted files scan results will be displayed in the Reconstructed files folder only.

The Deleted Files Scan is a specific scan method that searches only the free space of a volume for any files based on file patterns. Scanning only the free space allows the Deleted Files Scan to specifically detect any files that were deleted.


A file type you are searching for is not found. You have a special file type that is not supported by Data Rescue 3. You want to check if a file type is supported. After using FileIQ rerun the appropriate scan Check the Reconstructed files folder after the scan completes.

To utilize FileIQ, Data Rescue 3 needs to analyze good working files of the same file type that is missing. These may be older files that you have previously created with your program. You will usually need to reference at least 5 files of the same filetype to properly create a file module; however in some cases, as few as two files may work.